Our original Sheepherder's Wagon cover is made of heavy 12.64 ounce Sunforger Canvas that has been treated to be uv, mildew and fire resistant. Designed for strength and durability our canvas covers or "sheets", have reinforced seams and rope openings with leather patches rather than grommets to prevent "tear outs". Available in custom sizes and with many options to suit your needs. Choose from "Canvas Top Only", "Canvas Top and Liner" or "Canvas Top Complete", which includes canvas top, liner and two end canvases (insulation not included). Sizes up to 12 foot long x 13 foot wide are the price listed. Openings for chimney, door and window not cut in canvas. This should be a part of the installation process. Email us with wagon dimensions "Sheep Wagon Measurements". Larger size sheep wagon canvas covers can be priced "per square inch". Call us at 605-996-8754 or contact us for quote.