Example one: a rear storage band
Assume a 36 × 24 inch usable top, a 7 inch rear reservation and a 1 inch front margin. The clear working rectangle is 36 × 16 inches. An illustrative 18 × 12 inch mat fits, leaving 18 inches of width and 4 inches of depth beyond its footprint. Those leftovers are geometric differences, not a claim that every combination of tools fits around it.
The rear reservation must include any drawer travel you need to preserve. If the listed cabinet depth alone is 7 inches and drawers need more space, this example understates the reservation.
Example two: add a side staging strip
Keep the same 36 × 24 inch top and rear and front reservations, then allocate an 8 inch side strip and a 1 inch gap beside it. The working rectangle becomes 27 × 16 inches. The same 18 × 12 inch mat still fits. A 24 × 18 inch mat fails on depth, even though the overall table is wider than the mat.
Our planner places the side strip beside the working area, below the rear band. Its depth is therefore limited by the rear and front reservations. If an actual box needs more depth than that, the strip alone does not prove the box fits.
Example three: remove the rear storage
Move reserve stock to a separate suitable location. With no rear reservation, a 1 inch front margin and the same 9 inch combined side reservation, the work rectangle is 27 × 23 inches. Now a nominal 24 × 18 inch mat fits geometrically.
These are original arithmetic examples, not recommended safety margins or measurements of named products. Use your actual outer mat size and access needs. A layout that passes on paper still needs a practical check for posture, task suitability, stable support and the room surrounding the bench. Save or print the plan you want to try, then compare it with the real setup before purchasing anything.
Worked examples and organizational methods are our own planning analysis, not measured product tests. Follow the instructions for your exact equipment. How we research and correct these guides.