The table top calculator helps you plan a solid wood glued-up panel. Enter your final table dimensions and the width of your stock to get the number of boards needed, total board feet, glue line count, and clamping plan — including waste allowance for jointing and trimming.
Table Top Glue-Up Planner
Common: 1x4=3.5", 1x6=5.5", 1x8=7.25"
How to Plan a Table Top Glue-Up
A solid wood table top is a rewarding project that demands careful material planning. This table top calculator accounts for the waste you'll generate jointing edges and trimming the panel to final size.
Prepare Your Stock
Mill all boards to the same thickness (typically 3/4\" to 1-1/4\" for tables). Flatten one face on the jointer, then thickness plane the other. Joint one edge straight and square. The calculator assumes your stated "board width" is the finished, jointed width — each board loses 1/16\" to 1/8\" per edge joint.
Arrange and Glue Up
Dry-fit first. Alternate growth ring direction. Mark board order with chalk or tape so you don't scramble them. Apply glue to both mating edges. Use enough pipe clamps (one every 8–12\") to bring all joints tight with no gaps. Wax the clamp heads to prevent sticking.
Flatten After Glue-Up
After 24 hours, flatten the panel with a hand plane, router sled, or drum sander. Expect to remove 1/16\" to 3/16\" to get a perfectly flat surface. Account for this by starting slightly thicker than your final target — 7/8\" rough if you want 3/4\" finished.
Frequently Asked Questions
Is this table top calculator free?
Yes, completely free. All calculations run in your browser with no signup required.
How many boards do I need for a 36 x 72 inch table top?
For a 36" wide table using 3.5" wide boards (common 1x4 stock milled to 3.5"), you need about 10–11 boards plus waste. A 36"x72" table top is 18 board feet at 3/4" thickness, plus 15–20% waste. Use the calculator to get exact counts based on your specific board width and thickness.
How do I orient boards in a glue-up?
Alternate growth ring direction (cup up, cup down, cup up) to prevent the whole panel from cupping one way. Match grain direction so all boards can be planed in the same direction. Book-matching adjacent boards creates a mirror-image figure. For stability, use quartersawn boards whenever possible.
How many clamps do I need for a table top glue-up?
Use one clamp every 8–12 inches across the width, alternating top and bottom to prevent bowing. For a 36" wide top, plan for 3–4 pipe clamps. Cauls (clamping boards) help distribute pressure evenly. Parallel-jaw clamps are ideal for flat, even glue-ups.
How long should I wait before removing clamps?
For PVA wood glue (Titebond I, II, III), wait at least 1 hour before removing clamps, 24 hours before machining (planing, cutting). Cold temperatures slow cure time — add 50% more time below 60°F. Full wood-fiber strength develops in 24–72 hours.