Suggested Slab requirements - (Click Images to See Full-Size)

Flat Roof        Approx SlabsRequired     (Click Images to See Full-Size!)

.075 x 1.5        3 off 600x300, 3 off 600x450

1.5 x 1.5          4 off 600x600, 4 off 450x450

2.25 x 1.5        10 off 450x450, 5 off 600x450

3.0 x 1.5          10 off 600x600, 5 off 600x300

3.75 x 1.5        15 off 600x600, 3 off 600x300, 3 off600x450

4.5 x 1.5          14 off 600x600, 10 off 600x300

5.25 x 1.5        14 off 600x600, 8 off 600x300, 1 off600x450, 2 off 450x450

6.0 x 1.5          20 off 600x600, 10 off 600x300

Gable Roof    Approx Slabs Required           

2.25 x 2.25      25 off 450x450

3.0 x 2.25        25 off 600x450

3.75 x 2.25      30 off 600x450, 5 off 450x450

4.5 x 2.25        50 off 450x450

5.25 x 2.25      40 off 600x450, 5 off 450x450

6.0 x 2.25        30 off 600x600, 10 off 600x450

3.0 x 3.0          25 off 600x600

3.75 x 3.0        25 off 600x600, 5 off 600x300, 5 off600x450

4.5 x 3.0          35 off 600x600, 5 off 600x300

5.25 x 3.0        40 off 600x600, 5 off 600x450

6.0 x 3.0          50 off 600x600