Spring Done Here event is on now. Don't wait!  Shop event.

GAF Master Flow Building Materials(46 products)

Concrete, Cement & Masonry Decking Driveway Repair & Sealers Drywall Electrical Fencing & Gates Hardware Insulation Lumber & Composites Moulding & Millwork Outdoor Drainage Plumbing Roofing & Gutters Siding Ventilation & Ductwork Plexiglass & Acrylic Sheets Richelieu (4646) Paulin (2897) Leviton (1941) Alexandria Moulding (1480) Everbilt (1284) Amerock (1131) Fypon (1080) MOEN (1020) Simpson Strong-Tie (1001) Weiser (885) KOHLER (885) Aqua-Dynamic (791) AC WORKS® (744) ABTCO (700) Onward (644) Delta (601) Schlage (517) Dock Edge (433) Hillman (430) Commercial Electric (427) Southwire (427) Lutron (423) Milwaukee Tool (405) SharkBite (375) Prime-Line (372) CraftX (364) Peak (364) Klein Tools (342) Architectural Mailboxes (328) Taymor (322) Square D (321) Sioux Chief (312) Iberville (305) Defiant (296) Wasserstein (272) Ideal Security (247) Hilti (245) Hampton Bay (242) Rheem (220) Novik (219) Watts (211) American Imaginations (209) Atron (209) IPEX (203) Carlon (198) LESSO (196) PaulinPRO (194) Multinautic (190) Dundee Deco (188) GARDNER BENDER (185) Speedi-Boot (184) Oatey (183) Ornamental Mouldings (180) HDX (178) Patriot Docks (177) Veranda (176) Trex (172) Swann (166) Barrette Outdoor Living (165) Waterline (155) Schneider Electric (149) STZ (149) Urestone (149) OOK (148) RELN (148) Imperial (145) Legrand Wiremold (144) Knob-It (137) Nystrom (135) Eaton (135) Command (133) Nite Ize (132) Interbois (132) Nuvo Iron (129) Husky (128) Colonial Elegance (128) American Standard (127) Titan (126) Marshalltown (119) Pylex (119) Speedi-Grille (119) DEWALT (118) GAF (118) PRO-DF (117) Best Access Doors (117) PWR Drive (115) Pro-Connect (114) Tapcon (112) The Hillman Group (111) Pfister (111) IRVING (110) Fencer Wire (108) StyleWell (103) Krystal Touch (101) Outdoor Essentials (98) Mr. Goodbar (98) Mid America (98) Digiwave (98) Columbia Forest Products (95) Fence Armor (95) Kidde (93) Quikrete (92) Energizer (91) MicroPro Sienna (90) Defender (90) Dahl (90) Starborn (89) Peak Railblazers (88) Mayne (87) Red Dot (87) Shur Trim (84) Peak Products (84) RIDGID (83) Peerless (81) Microlectric (80) Amerelle (80) Riobel (80) Nextstone (79) Hitachi Power Tools (77) Dundas Jafine (76) Heath Zenith (76) TP-Link (75) Siemens (74) VELCRO (74) Sumner Street Home Hardware (73) Nature Power (73) Veho (73) Pittsburgh Corning (73) Kreg Tool Company (72) BrassCraft (72) CANADA TUBING (72) Burcam (71) Fortress (71) Ring (70) COBRA ANCHORS (69) Fendock (68) KEEPER (67) IDEAL (67) BP (67) Intermatic (67) Crisp-Air (67) RCA (65) M (64) 360 Electrical (64) CGC Sheetrock (64) GRK (63) EcoStone (62) FastenMaster (62) Forge (60) Grape Solar (60) Deckorators (60) Extech Instruments (60) OS&B (59) Eccotemp (59) Stiebel Eltron (58) SharkBite Max (56) Goal Zero (55) R2i Millwork (55) STANLEY (53) SAKRETE (53) Umbra (52) Eurostyle (51) Gibraltar Industries (51) Schneider Electric HomeLine (51) ECOFLO (50) RINNAI (50) Wright Products (50) U.S. LOCK (49) Onduline (49) Owens Corning (49) OZCO (48) BENNETT (48) TITAN BP (47) Revo America (47) LeakSeal (47) Knipex (46) GAF Master Flow (46) Wilson Electronics (46) INTERBUILD (45) Woods (45) Euramax Canada (45) Bailey Metal Products (45) Security Labs (45) Google (43) Playstar (43) Finium (43) K2 Pumps (43) Explore Hardware (42) TimberTech (42) Freeman (42) RESISTO (42) Fusion Stone (41) SNAP-LOC (41) Lenmar (41) CTA Digital (41) POLE-WRAP (40) MiTek (40) Proscan (39) Kraus (39) 4XEM (38) John Guest (38) Paslode (38) Arrow (38) Dayus (37) OMEGA (37) Onward Essentials (37) Worksavers (37) Porcupine (37) Onsen (37) Fluidmaster (37) Cobra (37) eufy security (36) Klassen Smart Hooks (36) Metrie (36) Baldwin (36) MURdesign (36) SureCall (35) KLASSEN BRONZE LIMITED (35) Erickson (35) Z-Flex (35) Korky (35) Yardistry (34) Ramset (34) Master Halco (34) Accuride (34) Aod Stone (33) Vortex Powerfan (33) Red Head (33) CanadaDocks (32) Belwith (32) RYOBI (32) Martyr (32) Trex Seclusions (32) Clipstone (32) CGC Synko (32) Globe Electric (31) VIGO (31) Hansgrohe (31) Sika (31) NewTechWood (31) Perplas (31) MAKITA (31) SQUEAK PROOF (31) M-D Building Products (31) Tzumi (30) Rocksolar (30) Valley Acrylic Bath LTD (30) Optix (30) VERANDA (30) Duracell (30) Geeni (30) Howell (30) NovaLee (30) Canada Wire (30) Arlo (30) E-Z Ancor® (30) SLIPFENCE (29) Canon (29) HDG (29) DMP (28) Q-See (28) Power-Pipe (28) Yale (28) Letsfit (28) Sloan (27) Eastman (27) A. Richard (27) ONE SCREW (27) Anvil (27) Mail Boss (26) Cenflex (26) Amazon (26) CGC Beadex (26) Legacy Wood Vents (26) Fittes (25) Tell (25) Scotch (25) Perma-Boot (25) Grip-Rite (25) Zamma (25) Honeywell Home (25) Yellow Jacket (24) Proplus (24) Skylink (24) Blum (24) Tapcon+ (24) Replistone (24) Link2Home (23) KingChain (23) Polyroche (23) PREMIER (23) Superstrut (23) Schneider Electric Federal Pioneer (23) SoftCurve (23) Homeguard (23) Victrola (22) Merkury Innovations (22) DuraLife (22) GE (22) Sylvania (21) Primegrip (21) Ubiquiti AmpliFi (21) AlinO (21) Trex Fencing (21) Zippity Outdoor Products (21) Distinct Home (21) POLYMERSHAPES (20) Resolute Forest Products (20) Muro (20) Black Knight (20) Alfred (20) Live Edge (20) MOLE-Pipe (20) Holdrite (20) Prestige Products (20) Canarm (20) KingCord (20) GROHE (19) Truth Hardware (19) Hangman (19) Atlas Sound (19) TOTO (19) 3M (19) Senco (19) HOFT (19) Simpli Home (19) Netgear (19) MEDALLION FENCE (19) WarmlyYours (19) Weybridge (18) Masters (18) Heritage Mill (18) NuTek (18) NuVue Products (18) Progress Lighting (18) Expression (18) Premier Copper Products (18) Creative Surfaces® (18) Norton (17) Helix (17) TRUporte (17) NASHUA (17) ToWo (17) Post Protector (17) Westman Steel (17) Koshin (17) Westinghouse (17) Glacier Bay (17) ANTOP (17) Quirky (17) Art3dwallpanels (17) Push 'N' Connect (17) Felo (16) Eaton Cutler-Hammer (16) Bakor (16) Broan-NuTone (16) Stylish (16) akuaplus (16) Great Lakes Copper (15) KEENEY MFG. (15) nexxt (15) Unbranded (15) Monster (15) Quick Dam (15) Hubbell (15) Tundra (15) Decolav (15) Cat (15) Art+Sound (15) Polaroid (15) VOSKER (15) Wyze (15) Dusco (15) IPEX HomeRite Products (15) UFP-Edge (15) Designer's Choice (14) Pass & Seymour (14) Sunforce (14) LePage (14) DAP (14) Brother (14) Platinum Link (14) PROVA (14) Euro Loft (14) Danco (14) Sharper Image (14) Cash Acme (14) Homerun (13) Vicwest Cladding (13) Plastival (13) Wambam Traditional (13) Advantage ICF System (13) TygerWire (13) Coleman (13) Limited Too (13) AIM Cedar Works (13) DPI (13) Zurn (13) FlexiCord (13) Reflectix (12) Richelieu Essentials (12) Classy Caps (12) Aura (12) Epoxyshield (12) Speedi-Vent (12) Toggler (12) Speedi-Collar (12) EXCELiner (12) PORTER-CABLE (12) PowerFilm (12) DGM Enterprises (12) Easy Planking (12) Swidget (12) GREAT STUFF (12) Edgemate (12) CAMO (11) Pex Ready (11) Rockwool (11) HIGH & MIGHTY (11) ODL (11) Natural Elements (11) Belkin (11) weBoost (11) DuoPower (11) Rainhandler (11) DuPont (11) Kubota (11) UNI-FLOW (11) Allsop (11) Modern Homes (11) Oldcastle (11) Big O (11) Images In Slate (10) Aduro (10) Bostitch (10) Noritz (10) Fantom (10) MARR (10) Alex Direct Inc (10) Samsung (10) Uniboard (10) The Home Depot (10) Solarsheat (10) Sinkology (10) CanWel Building Materials Div (10) ipg (10) D-Link (10) Rapid Set (10) Basalite Concrete Products (10) Gaines Manufacturing (10) Logix (10) Bosch (10) Marrette (10) Motorola (10) Eon (10) Krieger (10) KWP (10) Zipkord (10) Smanos (10) Tough Tested (10) Bow Plastics Ltd (10) Halo (10) Xcel (9) Dricore Pro (9) Keysmart (9) Wrap-It Storage (9) DALTON LOCKS (9) Blink (9) Airthings (9) CGC (9) Versetta Stone (9) Cyclone (9) PLUMB-EEZE (9) Tripp Lite (9) Composigrip (9) HB&G (9) ACME (9) Lexan (9) Cedartone Classic (9) Olympus (9) Serene Evolution (9) MAAX (9) Thermory (8) QEP (8) Soundcore By Anker (8) Sperry Instruments (8) SUNTRELLIS (8) SmoothTalker (8) TygerClaw (8) Enigma (8) BLACK+DECKER (8) Rayovac (8) Night & Day Numbers (8) Margaritaville (8) Honeywell (8) DELANY (8) Sun Joe (8) Andersen (8) GlucksteinElements (8) FLEX-A-SPOUT (8) In Stock Today at (5) Hide Unavailable Products (0) 0.5 in to 1 in (5) 2 in to 3 in (2) 3 in to 4 in (1) 4 in to 5 in (15) 5 in to 7 in (5) 7 in to 10 in (8) 10 in to 15 in (3) 15 in to 20 in (5) 24 in to 30 in (2) Less than 1 lb. (15) 1 lb. (16) 2 lbs. (3) 3 lbs. (1) 8 lbs. (1) 9 lbs. (1) 10 lbs. (1) 11 lbs. (1) 15 lbs. to 19 lbs. (3) 20 lbs. to 24 lbs. (3) 25 lbs. to 29 lbs. (1) 5 stars (2) 4 stars & up (34) 3 stars & up (40) Not yet rated (4) All rated products (42) 2 in to 3 in (1) 3 in to 4 in (1) 4 in to 5 in (1) 5 in to 7 in (3) 7 in to 10 in (2) 10 in to 15 in (7) 15 in to 20 in (22) 24 in to 30 in (5) 8 ft to 10 ft (4) No (2) Energy Efficient (2) 0.5 in to 1 in (12) 2 in to 3 in (4) 3 in to 4 in (1) 4 in to 5 in (1) 5 in to 7 in (1) 7 in to 10 in (9) 10 in to 15 in (2) 15 in to 20 in (7) 20 in to 24 in (4) 24 in to 30 in (5) $0 - $49 (35) $50 - $99 (1) $100 - $199 (6) $400 - $599 (3) $600 - $799 (1) FREE Delivery (8) FREE Ship to Store (5) FREE Store Pick-Up (5) Ventilation & Ductwork (44) Electrical (2)

Showing 40 of 46 products