Where I shop in San Francisco-2

An ongoing listing of where to buy cool stuff in SF-

Let's start with a wonderful San Francisco institution and one of the best places to buy art materials in the city.

SCRAP
www.scrap-sf.org-(Scroungers' Center for Recycled Art Parts) was created by SF Public Schools art teachers as a central place for businesses and individuals to donate materials. It is a huge place filled with an amazing variety of neat stuff (frame stock, tile and stone samples, graphic materials, artificial flowers & plants, kids' books, and much, much more [I once found a 3'X7' EXXON flag!]) at ridiculously low prices: $7.50 for a brown shopping bag full of whatever you can fit.
A bit tricky to find the first time but worth the trip. There is a map on the website which will help. I always caution people against taking their credit cards or too much money the first time lest they go overboard.

Building Resources
http://www.buildingresources.org/ Another great non-profit, sort of a construction version of SCRAP. Lots of windows, doors, tile, and an eclectic assortment of garden stuff and appliances. About a half-mile from SCRAP so a good one-two

Plumbing supplies:
Two retail establishments, one 1637 Fillmore between Geary & Post, Central Builders Supply is open Mon-Sat, has lots of plumbing and HVAC. Where SF plumbers shop on this side of town.
Map here:
http://www.google.com/local?hl=en&lr=&client=safari&rls=en&q=central+builder+supply&near=San+Francisco,+CA&sa=X&oi=locald&radius=0.0&latlng=37775000,-122418333,3838543089714629565
The other, Standard Plumbing and Hardware, 1019 Clement St near 11th has a very good selection of cast iron (up to 6") and is open on Sunday.
Map here:
http://maps.google.com/maps?q=1019+Clement+St%2C+San+Francisco%2C+CA+94118

Lumber-
Discount Builders, 1695 Mission, open 7 days. Decent prices, will cut wood to order, lots of tools and other hardware. One of the last centrally located lumber yards in SF.
Map here:
http://sanfrancisco.citysearch.com/map?mode=geo&id=913568&map_lat=377710&map_lon=-1224193&fid=&cslink=
Beronio Lumber, 2525 Marin (near SCRAP and Building Resources)- Hardwoods, paneling, flooring. Quality wood products and lots of interesting scraps of wood for carving. Not cheap. Open Mon-Sat.
Web site and map here:
http://www.beronio.com/beronio_website/contact/contact.html

Linen:
Linen Factory Outlet, 1001 Clement Street, at 11th Ave. a great factory-seconds linen store 400 thread-count sheet sets for $30-$40, 600 thread-count for $45.00. I bought the thickest, most plush towels I've ever owned there last year-leopard print Ralph Lauren bath towels for $7/ea. And because of this store I never sleep on anything less than 400 count sheets.
(same block as Standard Plumbing, above)
Map is slow to load:
http://yellowpages-int.superpages.com/supermaps/mapinit.jsp?SRC=portals&T=San+Francisco&S=CA&PP=N&STYPE=S&CID=00000518827&LID=0019940294&map.x=212&map.y=125&level=8&lat=037782687&lng=-122470040&POI1lat=037782687&POI1lng=-122470040&POI1name=Linen+Factory+Outlet&streetaddress=1001+Clement+Street&city=San+Francisco&state=CA&zip=94118