Name a building material

The rarest possible answer — almost no player finds it.

• Mycelium— Bricks grown from mushroom root, compostable when you're done.

Genuinely obscure. Most players never think of it.

• Aberdeen granite
• Abtswind Sandstone
• Acacia
• Accrington brick
• Acetylated wood
• Acid brick
• Acoustic plaster
• Acoustic tiles
• Aerogel
• Afzelia
• Agba
• Aggregate
• Akmara marble
• Alabaster
• Alder
• Alerce
• Alker
• Aluminum composite material
• Aluminum siding
• American muskwood
• American sycamore
• Anamosa Limestone
• Ancaster stone
• Andesite
• Andiroba
• Anigre
• Annealed glass
• Anröchte stone
• Aquia Creek sandstone
• Arabescato marble
• Arizona flagstone
• Artex
• Asbestos shingles
• Ash
• Ashcrete
• Ashford Black Marble
• Ashlar
• Aspen
• Atacama Black Marble
• Athangudi tile
• Australian red cedar
• Autoclaved aerated concrete
• Ayan
• Azobé
• Azulejo
• Bach Sandstone
• Bagasse
• Balau
• Bamboo flooring
• Bamboo plywood
• Banco
• Bargate stone
• Bark
• Barnack stone
• Barre granite
• Basalt
• Basalt fiber
• Basswood
• Bastard mahogany
• Bath stone
• Baumberge Sandstone
• Beaver-tail tiles
• Beech
• Beer stone
• Bentheim and Gildehaus Sandstone
• Berea sandstone
• Bern Sandstone
• Beveled glass
• Birch
• Bituminous waterproofing
• Blackbutt
• Blockboard
• Bluestone
• Board and batten
• Bollingen Sandstone
• Bone
• Bosse
• Bousillage
• Bowers Basebed
• Božanov sandstone
• Bracken
• Brass
• Brick slips
• Brick-bat coba
• Britten Sandstone
• Bronze
• Brownstone
• Bucova marble
• Built-up roofing
• Bulletproof glass
• Burgpreppach Sandstone
• Burgsvik sandstone
• Butcher block
• Butyl rubber
• Caen stone
• Calacatta marble
• Calcium aluminate cement
• Calcium silicate brick
• Caliche
• Candoglia marble
• Canvas
• Carbon fiber
• Carpet underlay
• Carrara marble
• Carrstone
• Cast earth
• Cast stone
• Celery-top pine
• Cellulose
• Cement board
• Cement plaster
• Cement-bonded particleboard
• Cement-bonded wood fiber
• Cementitious foam
• Cemesto
• Cesky Sternberk marble
• Cetechovice marble
• Ceylon ironwood
• Chalk
• Chalk paint
• Charred wood
• Cherry
• Chestnut
• Chiancarelle
• Chicago common brick
• Chikrassy
• Chinese blue brick
• Chinese glazed roof tiles
• Chunar stone
• Cipollino
• Clay panel
• Clay tiles
• Clinker brick
• Clipsham stone
• Cob
• Cockercombe tuff
• Cockeysville marble
• Coir
• Cold-formed steel
• Columbus Limestone
• Combed wheat reed
• Composite siding
• Compressed earth block
• Concrete tiles
• Construction adhesive
• Coquina
• Coral
• Cordwood
• Cork
• Cornberg Sandstone
• Cornbrash limestone
• Corrugated aluminum
• Corten steel
• Cotswold stone
• Cotta Sandstone
• Cotton
• Cottonwood
• Cottonwood Limestone
• Cover board
• CPE
• Crab Orchard Sandstone
• Craigleith Sandstone
• Cream City brick
• Crema Marfil
• Creole marble
• Creosote
• Cross-laminated timber
• Crown glass
• Crushed stone
• Cumaru
• Cylinder glass
• Cypress
• Daleti marble
• Danish oil
• Decomposed granite
• Decorative concrete
• Deister Sandstone
• Delft tile
• Dent marble
• Deodar
• Dettenhausen Sandstone
• Dholpur sandstone
• Diabase
• Dichinamo marble
• Diorite
• Distemper
• Dolomite
• Donzdorf Sandstone
• Douglas fir
• Dowel-laminated timber
• Driftwood
• Drop siding
• Dung
• Dutch brick
• Earthbag
• Earthen floor
• Ecobrick
• EIFS
• Ekeberg marble
• Elbe sandstone
• Elm
• Emperador marble
• Enamel
• Encaustic tile
• Enda Tikurir marble
• Engineered wood
• Engineered wood flooring
• Engineering brick
• EPDM
• Epoxy
• Epoxy flooring
• Eramosa marble
• Ermelo Sandstone
• ETFE
• Eucalyptus
• Expanded clay aggregate
• Fabric wallcovering
• Falu red
• Fambach Sandstone
• Fauske marble
• Fencepost limestone
• Ferrocement
• Ferrock
• Fiber-reinforced concrete
• Fiberboard
• Fiberglass panels
• Fieldstone
• Finger-jointed lumber
• Fir
• Fire brick
• Fire-rated glass
• Firestop
• Flax
• Flint
• Float glass
• Flonheim Sandstone
• Floorcloth
• Fly ash brick
• Foam concrete
• Foam glass
• Formstone
• Fort Riley Limestone
• Freda sandstone
• Freijo
• Freudenstadt Sandstone
• Friedewald Sandstone
• Frosted glass
• Frosterley marble
• Gabbro
• Gabion
• Galala marble
• Galvalume
• Galvanized steel
• Garapa
• Geopolymer concrete
• Georgia marble
• Giallo antico
• Glass block
• Glass concrete
• Glass fiber reinforced concrete
• Glass tile
• Glulam
• Gneiss
• Gnodstadt Sandstone
• Gobertange Sandstone
• Gotland sandstone
• Grass
• Grasscloth
• Greco Scritto
• Greenheart
• Greensand
• Grès bigarré des Vosges
• Grès d'Attalens
• Grès de Bulle
• Grès de Corbières
• Grès de Vaulruz
• Grillenburg Sandstone
• Griotte marble
• Gritstone
• Guanandi
• Guastavino tile
• Gypsum
• Gypsum block
• Gypsum concrete
• Gypsum plaster
• Gypsum roof board
• Hamstone
• Han Bai Yu Marble
• Hardboard
• Harvard brick
• Harz granite
• Hawkesbury sandstone
• Headington stone
• Heat-strengthened glass
• Heated glass
• Heather
• Heilbronn Sandstone
• Helidon Sandstone
• Hemlock
• Hemp
• Hempcrete
• Hickory
• Hide
• High-performance concrete
• Hils Sandstone
• Hinoki
• Hoggin
• Hokie Stone
• Hoop pine
• Hopton Wood stone
• Horsham stone
• House wrap
• Hummelstown brownstone
• Hybrid flooring
• Hymettus marble
• Hypalon
• Ibbenbüren sandstone
• Ice and water shield
• Ichu
• Ihrlerstein Green Sandstone
• Imbrex and tegula
• Indiana limestone
• Insulated concrete form
• Insulated glass
• Insulated siding
• Insulbrick
• Iona marble
• Ipe
• IPS flooring
• Iroko
• Ironbark
• Ironstone
• Ironwood
• Istrian stone
• Iznik tile
• Jacobsville sandstone
• Jaisalmer stone
• Jarrah
• Jatoba
• Jerusalem stone
• Jesmonite
• Jhiri Marble
• Jodhpur Sandstone
• Joint compound
• Juniper
• Jus Bahar
• Kadappa stone
• Kamptulicon
• Kandla Grey Sandstone
• Kapur
• Karlik marble
• Karri
• Kashmir gold granite
• Kashmir white granite
• Kasota limestone
• Katni Marble
• Kauri
• KEE
• Keene's cement
• Kempas
• Kershef
• Keruing
• Ketton stone
• Kilkenny marble
• Koa
• Kordel Sandstone
• Kosipo
• Kota stone
• Krtiny marble
• Kurkar
• Lacquer
• Lakhori bricks
• Laminate flooring
• Laminated glass
• Laminated strand lumber
• Laminated veneer lumber
• Lannon stone
• Larch
• Larvikite
• Lasa marble
• Laterite
• Latex paint
• Lath
• Lawson's cypress
• Lead
• Lead paint
• Leather wallpaper
• Lede stone
• Leistadt Sandstone
• Libná sandstone
• Liedberg Sandstone
• Light clay
• Lightweight concrete
• Limba
• Lime mortar
• Lime plaster
• Lime-ash floor
• Limecrete
• Lincrusta
• Linseed oil
• Lioz
• Lipova marble
• Liquid roofing
• Locharbriggs Sandstone
• Locust
• Log siding
• London stock brick
• Loßburg sandstone
• Low-E glass
• Low-iron glass
• Lutetian limestone
• Macael marble
• Magnesium oxide board
• Mahogany
• Makrana marble
• Makuti
• Mangalore tiles
• Mango Sandstone
• Mangrove
• Mansfield stone
• Maple
• Marianna marble
• Marseille tiles
• Masonry paint
• Mass timber
• Massaranduba
• Mastic
• Matatiele Sandstone
• Mathematical tiles
• Maulbronn Sandstone
• MDF
• Medina sandstone
• Medium density overlay
• Melamine
• Meranti
• Merbau
• Mesquite
• Milk paint
• Milly Grey Marble
• Mineral paint
• Mineral wool
• Modified bitumen
• Mokattam limestone
• Monel
• Monk and nun tiles
• Morwad White Marble
• Mosaic
• MS polymer
• Mšené sandstone
• Mudcrete
• Murphy marble
• Nail-laminated timber
• Nanakshahi bricks
• Nanmu
• Naxian marble
• Nebra Sandstone
• Neckar Valley Sandstone
• Negro Fantasia marble
• Nehodiv marble
• Neoprene
• Nepean Sandstone
• Nero Marquina
• Nesselberg Sandstone
• Neustadt-Haardt Sandstone
• New Red Sandstone
• Newi marble
• Nexø sandstone
• Niedergrund Sandstone
• Niederschona Sandstone
• Nieuwoudtville Sandstone
• Noir Belge
• Nöttingen sandstone
• Nubian Sandstone
• Nyatoh
• Oakum
• Oamaru stone
• Obeche
• Obernkirchen Sandstone
• Obersulzbach Sandstone
• Odenwald Sandstone
• Oil paint
• Okoumé
• Old Red Sandstone
• Onondaga limestone
• Onyx
• Oolite
• Opus signinum
• Oriented strand lumber
• Osning Sandstone
• Osterwald Sandstone
• Oudtshoorn Sandstone
• Oxide flooring
• Ōya stone
• Palm thatch
• Palm wood
• Pandanus
• Panga panga
• Pantiles
• Paper
• Papercrete
• Papyrus
• Parallel strand lumber
• Paraná pine
• Parian marble
• Parquet
• Paskapoo Sandstone
• Patterned glass
• Pau amarelo
• Pavonazzo marble
• Peat
• Pennant stone
• Pentelic marble
• Perlite
• Permastone
• Pernstejn marble
• Pervious concrete
• Petit Granit
• Pfrondorf Sandstone
• Phenolic foam
• PIB
• Pierre de Jaumont
• Piesberg Sandstone
• Pietra di Gorgoglione
• Pietra Dorata
• Pietra serena
• Planicosta Sandstone
• Plastic lumber
• Plate glass
• Plattensandstein
• Pliezhausen Sandstone
• Podhorní sandstone
• Podol marble
• Polished concrete
• Polycarbonate
• Polyisocyanurate
• Polymer concrete
• Polysulfide sealant
• Polyurethane
• Polyurethane sealant
• Polyurethane varnish
• Poplar
• Porbandar stone
• Porcelain
• Poros stone
• Porphyry
• Porta Sandstone
• Portasanta marble
• Portland Admiralty Roach
• Portland Bowers Roach
• Portland Jordans Roach
• Portland stone
• Posta Sandstone
• Potomac marble
• Potsdam sandstone
• Powder coating
• Pozzolana
• Precast concrete
• Prestressed concrete
• Primer
• Prism glass
• Proconnesian marble
• PTFE
• Pumice
• Purbeck marble
• Purbeck stone
• Purpleheart
• Putty
• PVC decking
• PVC membrane
• Qadad
• Quarry tile
• Quartzite
• Queensland maple
• Radiant barrier
• Ragstone
• Ramin
• Rammed earth
• Reclaimed lumber
• Recycled glass
• Red mahogany
• Red Main Sandstone
• Red sandstone
• Red Verona marble
• Redwood
• Reed
• Reed mat
• Refractory cement
• Reigate stone
• Reinhardtsdorf Sandstone
• Resin
• Rice hulls
• Rice straw
• Rimu
• Roll roofing
• Roller-compacted concrete
• Roman brick
• Roman cement
• Roman concrete
• Ronda Sandstone
• Roof tiles
• Roofing membrane
• Rorschach Sandstone
• Rosa aurora marble
• Rosendale cement
• Rosso di Levanto marble
• Rouge Belge
• Rouge de Rance
• Roughcast
• Ruabon brick
• Rubber flooring
• Rubber shingles
• Rubberized concrete
• Rubberwood
• Rubble
• Ruhr Sandstone
• Ruschita marble
• Rush
• Rüthen sandstone
• Rye straw
• Saint-Maximin limestone
• Sal
• Salt block
• Saltador marble
• Sandcrete
• Sandwich panel
• Sapele
• Sarooj
• Scagliola
• Schist
• Schweinstal Sandstone
• Scoria
• Screed
• Seagrass
• Sealant
• Sedge
• Seeberg Sandstone
• Self-cleaning glass
• Self-consolidating concrete
• Self-healing concrete
• Serpentinite
• Sett
• Shahabad stone
• Shakes
• Shedua
• Sheep's wool
• Shell
• Shellac
• Shikkui
• Shotcrete
• Siebigerode Sandstone
• Siena marble
• Silesian Sandstone
• Sinai Pearl Marble
• Sintered stone
• Sipo
• Sivec marble
• Skyros breccia
• Slag aggregate
• Slag brick
• Slivenec marble
• Smart glass
• Sneznik marble
• Soapstone
• Sod
• Softwood
• Soil cement
• Solar shingles
• Solid surface
• Solnhofen limestone
• Sorel cement
• Spandrel glass
• Spotted gum
• Spruce
• St. Genevieve marble
• St. Margreth Sandstone
• Staff
• Staffordshire blue brick
• Stained glass
• Stainless steel
• Steel siding
• Sticky rice mortar
• Stockton Sandstone
• Stone sealer
• Stone slate
• Stone veneer
• Stone-coated steel
• Straw board
• Structural clay tile
• Structural composite lumber
• Structural insulated panel
• Subway tile
• Sugarcrete
• Sugi
• Sulfur concrete
• Sunny Marble
• Suntel Sandstone
• Supikovice marble
• Surian
• Surkhi
• Sussex marble
• Swamp mahogany
• Swedish green marble
• Sweetgum
• Sydney blue gum
• Sylacauga marble
• Synthetic slate
• Synthetic underlayment
• Szydłowiec sandstone
• T1-11
• Tabby
• Table Mountain Sandstone
• Tadelakt
• Takaka marble
• Takian
• Talatat
• Talavera tile
• Tallowwood
• Tamala Limestone
• Tambach Sandstone
• Tandur stone
• Tar paper
• Tasmanian oak
• Teak
• Teak Wood Sandstone
• Tempered glass
• Tennessee marble
• Terne
• Terne-coated copper
• Terrazzo
• Těšínský sandstone
• Teufen Sandstone
• Tezontle
• Thassos marble
• Themar Sandstone
• Thermally modified wood
• Thinset
• Tiama
• Tigerwood
• Timbercrete
• Tin ceiling
• Tinted glass
• Titanium
• Tongue and groove
• Totora
• Totternhoe stone
• TPO
• Translucent concrete
• Travertine
• Trebgast Sandstone
• Tripolymer
• Tuckahoe marble
• Tufa
• Tuff
• Tuffeau stone
• Tung oil
• Tura limestone
• Turpentine wood
• Tyndall stone
• Udaipur Green Marble
• Udelfangen Sandstone
• Ultra-high-performance concrete
• Ummendorf Sandstone
• Urbanite
• Urea-formaldehyde foam
• Vacuum glazing
• Vapor barrier
• Varnish
• Velpke sandstone
• Veneer plaster
• Venetian plaster
• Vermiculite
• Vermont marble
• Veteado Rio marble
• Villamayor Sandstone
• Walnut
• Wattle
• Wattle and daub
• Wealden Sandstone
• Wehlen Sandstone
• Weil Sandstone
• Welded wire mesh
• Welsh slate
• Wenge
• Werl Green Sandstone
• Weser Sandstone
• Whalebone
• White mahogany
• Whitewash
• Wired glass
• Wood fiber
• Wood shingles
• Wood stain
• Wood veneer
• Wood-plastic composite
• Wool felt
• Worzeldorf sandstone
• Wychert
• Yorkstone
• Yule marble
• Zdonov Sandstone
• Zellige
• Zinc

Uncommon — only a minority of players land here.

• Acrylic
• Adobe
• Asbestos
• Asphalt
• Asphalt shingles
• Bamboo
• Carpet
• Caulk
• Cedar
• Ceramic tile
• Cobblestone
• Copper
• Corrugated iron
• Fiber cement
• Fiberglass
• Flagstone
• Granite
• Gravel
• Grout
• Hardwood
• Hardwood flooring
• Ice
• Insulation
• Laminate
• Lime
• Limestone
• Linoleum
• Metal roofing
• Mortar
• Mud
• Oak
• OSB
• Paint
• Particle board
• Pavers
• Pine
• Plastic
• Polystyrene
• PVC
• Quartz
• Rebar
• Reinforced concrete
• Rubber
• Sand
• Sandstone
• Sheet metal
• Shingle
• Shiplap
• Siding
• Slate
• Spray foam
• Straw
• Stucco
• Terracotta
• Thatch
• Tin
• Treated lumber
• Vinyl
• Wallpaper
• Wood paneling

A solid, middling pick shared with plenty of other players.

• Aluminum
• Cement
• Cinder block
• Clay
• Drywall
• Glass
• Iron
• Marble
• Metal
• Plaster
• Plywood
• Tile

The most common answer on the board.

• Brick
• Concrete
• Steel
• Stone
• Wood