Residential Design & Build Product Guide

Grand Timberline premium architectural shingles

GAF introduces the Grand Timberline premium architectural shingles, the largest and thickest Timberline shingle yet, featuring new, highly-contrasted color blends for a dramatic appearance. Grand Timberline shingles are 33 percent thicker and up to 50 percent bigger than standard architectural shingles, to replicate the natural beauty of traditional "sawn" wood shakes.