Standard timber sizes are as follows

TR26

35x72 47x72
35x97 47x97
35x122 47x122
35x147 47x145

47x175 47x197 47x223 47x247
All the above come in stock lengths from 2.4m – 6.0m (0.6 increments)

CLS grade C16 (we would typically use this for timber frame wall panels)

38x63
38x89
38x140

The above is stocked as 4.8m lengths

Glulam grade C24 

90x315
90x360
90x405
90x450

115x315
115x360
115x405
115x450
115x495
115x540
115x630

140x315
140x360
140x405
140x450
140x495
140x540
140x585

Sheet materials

11mm OSB sheathing 1.2x2.4
15mm Bitroc 12x2.4
Weyroc Chipboard 2.4x0.6
Plywood 2440x1220

Flooring: 22mm Egger Protect P5 chipboard