• The primary building blocks of our truss system is  ① C-Section ② Batten .
• The type of building, roof pitch, roof length, wind load and rain density are some of the deciding factors determining the design of our roof truss system.

D = depth , t = thickness (TCT) , b1 = top flange , b2 = base flange , s = lips

Section Type E		D (mm)	t (mm)	b1 (mm)	b2 (mm)	s (mm)	Area (Ag in mm²)	Weight (Kg/m)	Ix (mm⁴)	Iy (mm⁴)	rx (cm)	ry (cm)	Zx (mmᶟ)	Zy (mmᶟ)
1	JC75 x 35 x 0.75mm	75	0.75	37.4	35.2	6.4	117.5	0.96	103305	17897	3.013	1.254	2755	734
2	JC75 x 35 x 0.80mm	75	0.80	37.4	35.2	6.4	125.1	1.02	109828	18983	3.010	1.251	2929	779
3	JC75 x 35 x 1.00mm	75	1.00	37.4	35.2	6.4	152.71	1.31	137515	24386	3.001	1.264	3667	1013

Product Tolerances

Fort Steel light weight trusses are produced within the following tolerances :

Length	Web (Dim.H)	Flange (Dim.B)	Thickness
± 5mm	±1mm	± 2mm	± 0.05mm
Longitudinal Tensile	Tensile Strength	Yield Strength	Protective Coating
G550	Min 550 Mpa	Min 550 Mpa	T-Maz™
Standard Coating Mass	Surface Finish	Surface Colour
Y12	Non-spangled	Oak