How To Measure Your Project

NOTE: Make sure to write down the Fig. # that most illustrates your particular project along with your Dimensions (A-B-C, etc.) because you will need that information on the Quote Submission Form.

Fig. I – Attached, No Overhang

Figure 1


Maximum Span (Span can be increased by adding support or fan beams. However, in snow areas, spans will be shorter)

Panel Type Gauge Max Span
Deep “W” .025 15′ 6″
.032 17′ 6″
.040 19′
Quad-16 .025 11′
.032 12′ 6″

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Fig. II – Attached, With Overhang

Figure 2


Maximum Overhang (D from fig.II)

Panel Type Gauge Max Span
Deep “W” .025 4′
.032 5′
.040 6′
Quad-16 .025 2′ 6″
.032 3′

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Fig. III – Free standing – Side Drain

Figure 3


Maximum Distance Between Posts

10′ is the maximum distance between posts. This can be increased to 30′ using aluminum I-Beams. When posts exceed 12′ in height (above ground) steel posts must be used in place of standard aluminum.

NOTE: On freestanding covers, posts must be 2′ below ground.

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