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The total floor area to be covered with CLT panels.
The area the panels bear over, measured on the supporting structure. Treat it as a starting point rather than an order: CLT arrives as a cutting list, panels run one way only, and an area on its own cannot say how many panels it becomes — the panel size does that, and the offcut at the end of each run is paid for whether it is used or not.
The width of a single manufactured CLT panel.
Standard CLT panels commonly ship up to about 3 m (10 ft) wide, limited by transport width.
The length of a single manufactured CLT panel.
In practice this is limited by TRANSPORT rather than by the material or the press. A panel can be made longer than it can be delivered, and the real maximum is whatever reaches the site — the vehicle, the last junction before the gate, and the crane's reach once it is there. That constraint is worth resolving before a structural grid is fixed, because it is the grid that has to move afterwards.
CLT panels needed
9 panels
- Single panel area
- 390 sq ft
They open the calculator with your figures already in it
CLT Floor Panel Grid Layer Calculator: 9 panels — shown in imperial, US market. The link sets both, so the result they see is the one on your screen.
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How this was calculated
Formula source(s)
- Panel count = ceil(total floor area ÷ (panel width × panel length)), based on standard manufactured CLT panel dimensions
Inputs used
- Floor Area
- 3230 sq ft
- Panel Width
- 10 ft
- Panel Length
- 39 ft
Intermediate steps
- Single panel area
- 390 sq ft
What this calculation does not cover
- CLT spans one way and this count is two-dimensional. The panel's strong direction runs its length, so panels have to land square across the supports with bearing at each end, and the real quantity comes from fitting whole panels to the bay grid rather than dividing a total area — where the span does not divide neatly into the panel length, the difference is scrap and the count goes up.
- Panel size is limited on site as well as in the factory. A 3 x 12 m (39 ft) panel at a typical 175 mm (7 in) layup weighs on the order of 3 tonnes (3.3 tons), so crane capacity at the working radius, delivery access and the erection sequence often force smaller panels than the press could make — and smaller panels means more of them than this division shows.
Estimated cost — your price
This site holds no price list for this material — local prices vary too much to publish honestly. Enter your supplier's price and the result is costed with it.
Computed in your browser — nothing you enter is uploaded. Presented in US customary units and US trade terminology. Where a formula follows a published standard, that standard and its edition are cited beside it on this page; where none governs, the page says so. Local amendments override model codes — verify against the code in force where you build.
Sources checked 2026-09-06 · in the site-wide review of 2026-09-06 · v1.0.1
Regulatory standards & verification citations1
- Panel count = ceil(total floor area ÷ (panel width × panel length)), based on standard manufactured CLT panel dimensions
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