UNI-BLOCKS are large concrete blocks that United Concrete & Gravel Ltd., produces at our Quesnel, Williams Lake and 100 Mile House locations. Used for landscaping, retaining walls, fences, and for commercial and industrial applications. They are 2 ½’ by 2 ½’ by 5’ long and weigh approximately 4,500 pounds. United Concrete & Gravel Ltd., produces regular plain face blocks and very decorative natural-rock face blocks. Call us for pricing and availability.