Your starting place for exploring all aspects of architecture and home design, including architecture history, great architects, house styles, community design, historic preservation, landscape design, and architecture careers, with articles, photos, building plans, directories, net links, discussion forums, and more.

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Online construction supply store featuring Walker building cost estimating books and software, safety equipment, measuring instruments and more. Since 1915, we have been America's most established and widely relied-upon publishers of building and construction cost estimating reference books and forms for construction contractors and estimators. Walker’s 94-year reputation for providing accurate, industry normative, construction cost data to the industry, has been relied upon by generations of contractors. Browse these pages for the estimating “ bible”, Walker's Building Estimator's Reference Book, 28th Edition, our comprehensive guide to computing labor and material unit costs for estimating all building construction job costs , as well as F.R. Walker's Remodeling Reference Book, the residential remodeling contractor's equivalent of the Building Estimator’s Reference Book. These books are now available in hard copy and Online subscription versions with imbedded Excel tables of unit

PlanSwift is the #1 digital construction takeoff & estimating software for calculating quantity of material and labor using digital blueprints.

On Center Software develops construction software, estimating software and takeoff software for commercial and residential contractors. We also provide construction labor tracking software.

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Do construction cost estimating online with Costworks from RSMeans - the leading provider of cost data for construction professionals. Try it free for 7 days. With Costworks, you can manage customized estimates for commercial and residential construction projects with online access to the entire database of industry-standard RSMeans unit, facilities and assembly costs.