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cleszkie · 04-21-2016, 04:35 PM

In case you need more indicators:

Double wall has ribbed pattern running front to back on inside ceiling. Single wall has fewer, larger ribs running side to side on inside ceiling.

04-21-2016, 04:35 PM	#5
cleszkie Registered User Join Date: Feb 2003 Location: Santa Ana, CA Posts: 2,191	Re: single wall top ?? In case you need more indicators: Double wall has ribbed pattern running front to back on inside ceiling. Single wall has fewer, larger ribs running side to side on inside ceiling.