Ordering Information & Estimation Form How To Estimate Your Order Amazon Forms will calculate your order from your floor plans. Mail, Fax or Email them to us. Also, you may do your own calculations.  We have included an excel worksheet to help with this job. Instructions are included in the file on the first page. Useful Facts Here are some useful facts to help you estimate the amount of blocks needed for your job: For Every 100 square feet of wall, the following is required: 18.76 Grid-Wall blocks @ 75 lbs. each or 1400 lbs. 1 cubic yard of concrete @ 3400 lbs. 150' of #4 rebar, at approximately 0.6 lbs. /linear foot, or 90 lbs. The total weight, then, is 4,890 lbs. /100 square feet of wall or approx. 50 lbs. per square foot of wall. Multiply your plate height by 50 lbs. for the load per linear foot on your foundation. Note: Final lineal weight of the wall will vary with choice of wall coverings. Total load must include roof systems and additional floors.   Grid-WALL Blocks (standard) Our standard Grid-WALL™ block measures 48” long by 16” high by 10” thick and weighs 70 to 75 lbs. The voids are 16" on center. The exterior surface area of this standard block measures 5.333 square feet. See Technical Drawing A full pallet contains 12 standard blocks which can be stacked two high (24 total). Grid-Corner™ Our pre-formed corner blocks, Grid-CORNER™, measure 21” long by 16” high by 10” thick and weigh about 60 lbs. Each exterior face of Grid-Corner™ covers 2.33 square feet, making a total of 4.66 square feet exterior wall area per corner block. (See technical drawing) A full pallet contains 24 corner blocks.   Lead Time Lead Time We are currently asking that orders be placed 6 to 8 weeks in advance of delivery, but this is subject to change as construction orders are seasonal. Check with us about availability. Shipping Shipping Shipping costs will vary depending upon delivery location. Please call for more information. Payment Terms 50% due to get placed on our order list. 100% due prior to shipping.