Ordering from Construction Book Express is *RISK-FREE. We absolutely insist that you be completely satisfied. Take a full thirty days to review any item(s) you ordered. If you discover a Concrete Calculators is not what you expected, return it and we will refund your money or credit your charge card for the purchase price of the products.

*Exceptions: Videos/DVDs, audio tapes, computer software, forms, reports, test chemicals, and custom orders once opened, are not returnable. Downloads are non-refundable.