The word carpenters is playable in Words With Friends™, no blanks required. Because it is longer than 7 letters, you would have to play off an existing word or do it in several moves.
Words With Friends™ Letter Score: 17
Highest Scoring Words With Friends™ Play In The Letters
Seven Letter Word Alert: (76 words)
canters, careens, careers, carpers, carpets, carters, caterer, centers, centres, cerates, craters, creaser, creates, earners, earnest, eastern, entraps, errants, escaper, nearest, nectars, panters, parents, partner, pectens, pencase, percent, prancer, prances, praters, precast, precent, prerace, present, pretans, ranters, reapers, recanes, recants, recrate, reenact, renters, repaces, reparse, repaste, repeats, repents, rerapes, rerents, respace, respect, restrap, retapes, retears, retrace, retraps, scanter, scenter, scepter, sceptre, scraper, serpent, serrate, spearer, specter, spectra, spectre, sterane, sterner, taperer, tearers, terrace, terrane, tracers, trances, trepans