Also functions as a gravel grid for driveways, plastic shed bases, hot tubs, greenhouses, bins, and more. Asphalt Roof Shingle - 25 PCs / 3 sqm Felt Roofing Shingles Nails Included. With a low 1.18" (3cm) profile, this shed base plastic grid reduces the need for deep fill - saving on gravel or soil.
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