Shed comparison · same reference inputs

12×16 vs 12×20: what does the extra space change?

Keep the equipment and activities fixed. Compare usable width, depth and openings before committing to more nominal area.

Does extra depth separate a permanent machine, assembly table and bench while preserving the material sweep?

Same arrangement: 12×16 and 12×20

Equipment, activities and allowances are identical. The authored shell dimensions and opening can differ. The drawings use one scale, including full-size items that cannot be placed. Positions can change as the bounded layout search uses the available space.

12×16

Example interior 136 × 184 in; clear door 72 × 78 in.

Full-size layout and reserved spacesFull-size footprints with a 24 in entry/side aisle and 30 in bench standing depth. Machine envelopes are reserved simultaneously. Staging is screened along the lengthwise axis; turning, actual machine feed points and manufacturer operating instructions require separate confirmation. Objects outside the outlined shell have not been placed. Numbers refer to the object list. This is a planning diagram, not a construction drawing.Reserved entry cross-aisle: 136 × 24 in at 0, 0 inReserved side aisle: 24 × 130 in at 0, 0 inBench standing area: 60 × 30 in at 38, 130 inWorkbench: 60 × 24 in at 38, 160 inTable saw working envelope: 72 × 96 in at 24, 24 inTool chest: 30 × 24 in at 96, 24 inAssembly table: 72 × 48 in at 148, 0 inTable saw footprint: 36 × 30 in at 42, 57 in12345678Usable interior · 136 × 184 inFront opening · 72 in clear width136 in wide184 in deepOrange: reserved route · dashed red: outside shell

Dark: equipment or storage. Pale areas: activities or zones. Dimensions in inches; scale changes with the view.

  1. 1. Reserved entry cross-aisle: 136 × 24 in
  2. 2. Reserved side aisle: 24 × 130 in
  3. 3. Bench standing area: 60 × 30 in
  4. 4. Workbench: 60 × 24 in
  5. 5. Table saw working envelope: 72 × 96 in
  6. 6. Tool chest: 30 × 24 in
  7. 7. Assembly table: 72 × 48 in — outside shell
  8. 8. Table saw footprint: 36 × 30 in

Inspect the layout

100%

Dimensions in inches. Zoom changes the view, not your measurements. Select an object to identify its footprint, then swipe or scroll within the drawing. With a keyboard, focus the drawing and use arrow keys.

Input-based planning only. Turning, ramps, thresholds, wall mounting and structural capacity are not approved by this diagram. Escape or Close returns to the page.

This tested arrangement has unresolved geometry conflicts.

  • Assembly table: no non-overlapping position was found in this bounded arrangement search.
12×20

Example interior 136 × 232 in; clear door 72 × 78 in.

Full-size layout and reserved spacesFull-size footprints with a 24 in entry/side aisle and 30 in bench standing depth. Machine envelopes are reserved simultaneously. Staging is screened along the lengthwise axis; turning, actual machine feed points and manufacturer operating instructions require separate confirmation. Objects outside the outlined shell have not been placed. Numbers refer to the object list. This is a planning diagram, not a construction drawing.Reserved entry cross-aisle: 136 × 24 in at 0, 0 inReserved side aisle: 24 × 178 in at 0, 0 inBench standing area: 60 × 30 in at 38, 178 inWorkbench: 60 × 24 in at 38, 208 inTable saw working envelope: 72 × 96 in at 24, 24 inAssembly table: 72 × 48 in at 24, 120 inTool chest: 30 × 24 in at 96, 24 inTable saw footprint: 36 × 30 in at 42, 57 in12345678Usable interior · 136 × 232 inFront opening · 72 in clear width136 in wide232 in deepOrange: reserved route · dashed red: outside shell

Dark: equipment or storage. Pale areas: activities or zones. Dimensions in inches; scale changes with the view.

  1. 1. Reserved entry cross-aisle: 136 × 24 in
  2. 2. Reserved side aisle: 24 × 178 in
  3. 3. Bench standing area: 60 × 30 in
  4. 4. Workbench: 60 × 24 in
  5. 5. Table saw working envelope: 72 × 96 in
  6. 6. Assembly table: 72 × 48 in
  7. 7. Tool chest: 30 × 24 in
  8. 8. Table saw footprint: 36 × 30 in

Inspect the layout

100%

Dimensions in inches. Zoom changes the view, not your measurements. Select an object to identify its footprint, then swipe or scroll within the drawing. With a keyboard, focus the drawing and use arrow keys.

Input-based planning only. Turning, ramps, thresholds, wall mounting and structural capacity are not approved by this diagram. Escape or Close returns to the page.

The shown arrangement preserves its reserved spaces and entry aisle.

  • A failed arrangement is not proof that every layout in this size fails. Only the displayed axis-aligned arrangements were tested.
  • Equipment footprints and reserved spaces are editable planning assumptions. These rectangles do not establish manufacturer operating clearances.

Moving from the first example to the second changes usable width by 0 in, depth by 48 in and clear door width by 0 in. These differences belong to these examples. Obtain actual product measurements before choosing.

A changed result applies to the shown arrangement only. A different layout may work; a larger candidate can still fail a doorway, site or budget check.

Separate the ground footprint from the access result

Same-origin nominal footprint overlaySolid: 12×16 ft nominalDashed: 12×20 ft nominal
These are nominal building footprints, without a foundation extension, overhang or setback. Their overlap does not describe either product's interior or door.

12×16 · Straight material feed at Table saw

Straight material feed at Table sawFull-size footprints with a 24 in entry/side aisle and 30 in bench standing depth. Machine envelopes are reserved simultaneously. Staging is screened along the lengthwise axis; turning, actual machine feed points and manufacturer operating instructions require separate confirmation. Objects outside the outlined shell have not been placed. Numbers refer to the object list. This is a planning diagram, not a construction drawing.Reserved entry cross-aisle: 136 × 24 in at 0, 0 inReserved side aisle: 24 × 130 in at 0, 0 inBench standing area: 60 × 30 in at 38, 130 inWorkbench: 60 × 24 in at 38, 160 inTable saw working envelope: 72 × 96 in at 24, 24 inTool chest: 30 × 24 in at 96, 24 inAssembly table: 72 × 48 in at 148, 0 inTable saw footprint: 36 × 30 in at 42, 57 inTable saw: entered material sweep: 24 × 66 in at 48, 39 in123456789Usable interior · 136 × 184 inFront opening · 72 in clear width136 in wide184 in deepOrange: reserved route · dashed red: outside shell

Dark: equipment or storage. Pale areas: activities or zones. Dimensions in inches; scale changes with the view.

  1. 1. Reserved entry cross-aisle: 136 × 24 in
  2. 2. Reserved side aisle: 24 × 130 in
  3. 3. Bench standing area: 60 × 30 in
  4. 4. Workbench: 60 × 24 in
  5. 5. Table saw working envelope: 72 × 96 in
  6. 6. Tool chest: 30 × 24 in
  7. 7. Assembly table: 72 × 48 in — outside shell
  8. 8. Table saw footprint: 36 × 30 in
  9. 9. Table saw: entered material sweep: 24 × 66 in

Inspect the layout

100%

Dimensions in inches. Zoom changes the view, not your measurements. Select an object to identify its footprint, then swipe or scroll within the drawing. With a keyboard, focus the drawing and use arrow keys.

Input-based planning only. Turning, ramps, thresholds, wall mounting and structural capacity are not approved by this diagram. Escape or Close returns to the page.

Assembly table: no non-overlapping position was found in this bounded arrangement search.

12×20 · Straight material feed at Table saw

Straight material feed at Table sawFull-size footprints with a 24 in entry/side aisle and 30 in bench standing depth. Machine envelopes are reserved simultaneously. Staging is screened along the lengthwise axis; turning, actual machine feed points and manufacturer operating instructions require separate confirmation. Objects outside the outlined shell have not been placed. Numbers refer to the object list. This is a planning diagram, not a construction drawing.Reserved entry cross-aisle: 136 × 24 in at 0, 0 inReserved side aisle: 24 × 178 in at 0, 0 inBench standing area: 60 × 30 in at 38, 178 inWorkbench: 60 × 24 in at 38, 208 inTable saw working envelope: 72 × 96 in at 24, 24 inAssembly table: 72 × 48 in at 24, 120 inTool chest: 30 × 24 in at 96, 24 inTable saw footprint: 36 × 30 in at 42, 57 inTable saw: entered material sweep: 24 × 66 in at 48, 39 in123456789Usable interior · 136 × 232 inFront opening · 72 in clear width136 in wide232 in deepOrange: reserved route · dashed red: outside shell

Dark: equipment or storage. Pale areas: activities or zones. Dimensions in inches; scale changes with the view.

  1. 1. Reserved entry cross-aisle: 136 × 24 in
  2. 2. Reserved side aisle: 24 × 178 in
  3. 3. Bench standing area: 60 × 30 in
  4. 4. Workbench: 60 × 24 in
  5. 5. Table saw working envelope: 72 × 96 in
  6. 6. Assembly table: 72 × 48 in
  7. 7. Tool chest: 30 × 24 in
  8. 8. Table saw footprint: 36 × 30 in
  9. 9. Table saw: entered material sweep: 24 × 66 in

Inspect the layout

100%

Dimensions in inches. Zoom changes the view, not your measurements. Select an object to identify its footprint, then swipe or scroll within the drawing. With a keyboard, focus the drawing and use arrow keys.

Input-based planning only. Turning, ramps, thresholds, wall mounting and structural capacity are not approved by this diagram. Escape or Close returns to the page.

A failed arrangement is not proof that every layout in this size fails. Only the displayed axis-aligned arrangements were tested.

The highlighted state retains the same inventory and working requirements. An unchanged opening or blocked route can remain limiting even when the nominal footprint increases. Inspect other operating states in the expanded viewer.

What changes, and what stays limiting?

Usable width
136 → 136 in
Unchanged
Usable depth
184 → 232 in
+48 in
Clear opening width
72 → 72 in
Unchanged
Clear opening height
78 → 78 in
Unchanged

The 12×16 result is “This tested arrangement has unresolved geometry conflicts.”; the 12×20 result is “The shown arrangement preserves its reserved spaces and entry aisle.”. Read the specific conflicts above before attributing a change to size. Several shell measurements may change together.

Measure before choosing

Measure the machine footprint and operating envelope, assembly table and its activity space, bench standing depth and longest material separately.

If your arrangement still fails

Extra depth can admit the assembly table while the machine envelope stays reserved. It does not enlarge the unchanged opening or guarantee a longer material sweep. Inspect the long-stock counterexample before choosing.

The dimensions above belong to authored examples, not universal specifications for these nominal sizes.

More depth does not automatically clear long stock

The permanent workshop above uses an illustrative 18 in material length on each side of the machine. Change only that length to 96 in here. The saw, assembly table, chest, bench and reserved spaces remain in the calculation. The highlighted sweep keeps its full size even outside the building.

12×16 · 96 in stock

Straight material feed at Table sawFull-size footprints with a 24 in entry/side aisle and 30 in bench standing depth. Machine envelopes are reserved simultaneously. Staging is screened along the lengthwise axis; turning, actual machine feed points and manufacturer operating instructions require separate confirmation. Objects outside the outlined shell have not been placed. Numbers refer to the object list. This is a planning diagram, not a construction drawing.Reserved entry cross-aisle: 136 × 24 in at 0, 0 inReserved side aisle: 24 × 130 in at 0, 0 inBench standing area: 60 × 30 in at 38, 130 inWorkbench: 60 × 24 in at 38, 160 inTable saw working envelope: 72 × 96 in at 24, 24 inTool chest: 30 × 24 in at 96, 24 inAssembly table: 72 × 48 in at 148, 0 inTable saw footprint: 36 × 30 in at 42, 57 inTable saw: entered material sweep: 24 × 222 in at 48, -39 in123456789Usable interior · 136 × 184 inFront opening · 72 in clear width136 in wide184 in deepOrange: reserved route · dashed red: outside shell

Dark: equipment or storage. Pale areas: activities or zones. Dimensions in inches; scale changes with the view.

  1. 1. Reserved entry cross-aisle: 136 × 24 in
  2. 2. Reserved side aisle: 24 × 130 in
  3. 3. Bench standing area: 60 × 30 in
  4. 4. Workbench: 60 × 24 in
  5. 5. Table saw working envelope: 72 × 96 in
  6. 6. Tool chest: 30 × 24 in
  7. 7. Assembly table: 72 × 48 in — outside shell
  8. 8. Table saw footprint: 36 × 30 in
  9. 9. Table saw: entered material sweep: 24 × 222 in — outside shell

Inspect the layout

100%

Dimensions in inches. Zoom changes the view, not your measurements. Select an object to identify its footprint, then swipe or scroll within the drawing. With a keyboard, focus the drawing and use arrow keys.

Input-based planning only. Turning, ramps, thresholds, wall mounting and structural capacity are not approved by this diagram. Escape or Close returns to the page.

  • Assembly table: no non-overlapping position was found in this bounded arrangement search.
  • Table saw: the entered straight material sweep conflicts with the interior or another reserved space.

12×20 · 96 in stock

Straight material feed at Table sawFull-size footprints with a 24 in entry/side aisle and 30 in bench standing depth. Machine envelopes are reserved simultaneously. Staging is screened along the lengthwise axis; turning, actual machine feed points and manufacturer operating instructions require separate confirmation. Objects outside the outlined shell have not been placed. Numbers refer to the object list. This is a planning diagram, not a construction drawing.Reserved entry cross-aisle: 136 × 24 in at 0, 0 inReserved side aisle: 24 × 178 in at 0, 0 inBench standing area: 60 × 30 in at 38, 178 inWorkbench: 60 × 24 in at 38, 208 inTable saw working envelope: 72 × 96 in at 24, 24 inAssembly table: 72 × 48 in at 24, 120 inTool chest: 30 × 24 in at 96, 24 inTable saw footprint: 36 × 30 in at 42, 57 inTable saw: entered material sweep: 24 × 222 in at 48, -39 in123456789Usable interior · 136 × 232 inFront opening · 72 in clear width136 in wide232 in deepOrange: reserved route · dashed red: outside shell

Dark: equipment or storage. Pale areas: activities or zones. Dimensions in inches; scale changes with the view.

  1. 1. Reserved entry cross-aisle: 136 × 24 in
  2. 2. Reserved side aisle: 24 × 178 in
  3. 3. Bench standing area: 60 × 30 in
  4. 4. Workbench: 60 × 24 in
  5. 5. Table saw working envelope: 72 × 96 in
  6. 6. Assembly table: 72 × 48 in
  7. 7. Tool chest: 30 × 24 in
  8. 8. Table saw footprint: 36 × 30 in
  9. 9. Table saw: entered material sweep: 24 × 222 in — outside shell

Inspect the layout

100%

Dimensions in inches. Zoom changes the view, not your measurements. Select an object to identify its footprint, then swipe or scroll within the drawing. With a keyboard, focus the drawing and use arrow keys.

Input-based planning only. Turning, ramps, thresholds, wall mounting and structural capacity are not approved by this diagram. Escape or Close returns to the page.

  • Table saw: the entered straight material sweep conflicts with the interior or another reserved space.

This rejects the shown feed arrangement, not every workshop in these sizes. Measure the actual feed point, full material travel and any assembly activity allowance, then edit the reference. The model screens a straight rectangular sweep; it does not assess rotating stock, guarding or manufacturer safety clearances.

Download the authored reference diagrams

Version 2026-09-08-decisions. These files reproduce the public examples, including failed arrangements. Your private measurements are only included when you generate your own brief.

  • Figure 1 · 12×16 12×20 workshop permanent 12×16SVGWebP
  • Figure 2 · 12×16 12×20 workshop permanent 12×20SVGWebP
  • Figure 3 · 12×16 12×20 overlaySVGWebP
  • Figure 4 · 12×16 12×20 access 12×16SVGWebP
  • Figure 5 · 12×16 12×20 access 12×20SVGWebP
  • Figure 6 · workshop long stock 12×16SVGWebP
  • Figure 7 · workshop long stock 12×20SVGWebP
Compare my saved project in these two sizes

Decision questions

  1. 01Which footprint addresses the actual constraint?
  2. 02Do the same objects fit in both directions?
  3. 03Does extra width or length improve retrieval?
  4. 04What changes at the clear door and access path?
  5. 05Can the larger footprint still fit the yard and budget?

Same inventory. Two footprints.

12×16 versus 12×20.

The comparison preserves your current project state. It shows a planning trade-off, not an assertion that either nominal size has a universal interior or door opening.

12×16

Nominal exterior size
Details still need checking
Placement
1 need checking
Clear opening
Modeled checks pass
Selected retrieval paths
Modeled checks pass

Wall-mounted geometry, mounting, projection and retrieval have not been evaluated. This item is not included as usable floor capacity.

Includes example or unconfirmed measurements

Draft reason stays in this browser. Confirm a choice to include it as a decision.

12×20

Nominal exterior size
Details still need checking
Placement
1 need checking
Clear opening
Modeled checks pass
Selected retrieval paths
Modeled checks pass

Wall-mounted geometry, mounting, projection and retrieval have not been evaluated. This item is not included as usable floor capacity.

Includes example or unconfirmed measurements

Draft reason stays in this browser. Confirm a choice to include it as a decision.

Using example planning shells · edit measurements

Open only when you have usable interior and clear-door measurements for either shell. These editable values remain separate from nominal exterior size.

Example planning shell

Nominal size is not usable interior size.

12×16 is a nominal exterior size. The values below are editable example planning assumptions, not a claim about every shed of this size.

Example planning shell

Nominal size is not usable interior size.

12×20 is a nominal exterior size. The values below are editable example planning assumptions, not a claim about every shed of this size.

Change this project?