01981 242100

Constructional Softwood

Carcassing is available in kiln dried C16 graded or wet. Standard thicknesses are 36mm,47mm, 63mm and 73mm widths up to 225mm and lengths up to 5.4 meters. Special sizes are available up to 300mmx300mm 6.1 meters.

Sizes

The table below shows stock sizes of timber with cubic metre volume calculated for bulk order calculations. 

Size (mm) 2.1m 2.4m 2.7m 3m 3.6m 4.2m 4.8m 5.4m 6.1m
47 x 25 0.0025 0.0028
0.0032 0.0035 0.0042 0.0049 0.0056 0.0063 0.0072
47 x 50 0.0049 0.0056 0.0063 0.0071 0.0085 0.0099 0.0113 0.0127 0.0143
47 x 75 0.0074 0.0085 0.0095 0.0106 0.0127 0.0148 0.0169 0.0190 0.0215
47 x 100 0.0099 0.0113 0.0127 0.0141 0.0169 0.0197 0.0226 0.0254 0.0287
47 x 125 0.0123 0.0141 0.0159 0.0176 0.0212 0.0247 0.0282 0.0317 0.0358
47 x 150 0.0148 0.0169 0.0190 0.0212 0.0254 0.0296 0.0338 0.0381 0.0430
47 x 175 0.0173 0.0197 0.0222 0.0247 0.0296 0.0345 0.0395 0.0444 0.0502
47 x 200 0.0197 0.0226 0.0254 0.0282 0.0338 0.0395 0.0451 0.0508 0.0573
47 x 225 0.0222 0.0254 0.0286 0.0317 0.0381 0.0444 0.0508 0.0571 0.0645
47 x 250 0.0247 0.0282 0.0317 0.0353 0.0423 0.0494 0.0564 0.0635 0.0717
63 x 175 0.0232 0.0265 0.0298 0.0331 0.0397 0.0463 0.0529 0.0595 0.0673
63 x 200 0.0265 0.0302 0.0340 0.0378 0.0454 0.0529 0.0605 0.0680 0.0769
63 x 225 0.0298 0.0340 0.0383 0.0425 0.0510 0.0595 0.0680 0.0765 0.0865
73 x 100 0.0153 0.0175 0.0197 0.0219 0.0263 0.0307 0.0350 0.0394 0.0445
73 x 125 0.0192 0.0219 0.0246 0.0274 0.0329 0.0383 0.0438 0.0493 0.0557
73 x 150 0.0230 0.0263 0.0296 0.0329 0.0394 0.0460 0.0526 0.0591 0.0668
73 x 175 0.0268 0.0307 0.0345 0.0383 0.0460 0.0537 0.0613 0.0690 0.0779
73 x 200 0.0307 0.0350 0.0394 0.0438 0.0526 0.0613 0.0701 0.0788 0.0891
73 x 225 0.0345 0.0394 0.0443 0.0493 0.0591 0.0690 0.0788 0.0887 0.1002

C16 Explained

Softwoods are the most frequently-used timbers for loadbearing situations. In order to comply with the Building Regulations they must always be strength graded: they are then usually put into a Strength Class. In the UK, softwoods are graded visually, in accordance with BS 4978:2007, or by machine to EN 14081:2005.

Pontrilas Merchants grade all load bearing construction timbers by a machine to achieve C16 strength Class and the timber is stamped accordingly. Pontrilas Merchants use an independent body who audit and check the strength grading machine to ensure that all C16 strength grade timber complies with current legislation and guidelines.

 

Span (m) Ground Floor First/Intermediate Floor
Spacing (mm) 400 400
2m 45 x 120 45 x 120
3m 45 x 145 45 x 170
4m 45 x 195 45 x 195
5m 72 x 220 72 x 220