NEW! CONSTRUCTION FORMULAS QUICK-CARD® A UNIQUE QUICK-REFERENCE GUIDE By Builder's Book, Inc. In this single, 6-page laminated card, you get all the math essentials you need in contracting. The formulas and rules of thumb for calculating construction featured in this reference will help you on each job! FEATURES: Concrete - Concrete Masonry Units - Gypsum Board - Painting - Plaster - Masonry - Rough Carpentry - Finish Carpentry - Exterior - Insulation - Floor/Ceiling Framing - Ohm's Law - Electrical Formulas - Roofing - Finish Carpentry - Interior - Foundation Sealer - AND MUCH MORE!