Plywood hoahoa ne ho sɛ ɛwɔ tumi a ɛkyɛn screw-kura mu, ahoɔden a ɛkorɔn, na nea ɛda nsow ne ne den, nnyigyei a ɛtwetwe, ne ɔhyew a ɛbɔ ho ban. Ɛsan nso wɔ nsuo a ɛsua (ɛfiri 10% kɔsi 13%), ɛnyɛ den sɛ wɔbɛyɛ ho adwuma, na ɛwɔ dwumadie ahodoɔ a ɛtrɛ paa.
Plywood yɛ nea ɛyɛ den sen nnua a ɛyɛ den, nanso ɛyɛ mmerɛw sɛ nsu bɛsɛe no. Enti, ɛsɛ sɛ wɔkwati sɛ wɔde bedi dwuma wɔ adididan ne aguaree mu bere a wɔresi dan no.
Akwan a wɔfa so yɛ plywood no bi ne mfiri a wɔde ka bom ne nsa a wɔde bom. Nsa a wɔde bɛka abom no hwehwɛ sɛ wɔde nsa hyehyɛ nnua a wɔde abɔ plywood no mu. Nnua a wɔabɔ no nhama no nnya ahoɔden a ɛtwetwe pii, na ɛde splicing a ɛnyɛ pɛpɛɛpɛ, nsonsonoe akɛse, ne nnadewa-tumi a ɛnyɛ papa a ɛkura mu ba. Wontumi ntwa na ɛfata ma nnwuma nketewa bi nkutoo wɔ ahosiesie mu, te sɛ nea wɔde hyɛ ase ma nnua a ɛyɛ den a wɔde si fam. Ɔkwan foforo so no, mfiri a wɔde hyɛ mu no nya ahoɔden a ɛtwetwe ade kɛse, na ɛde nsonsonoe kakraa bi ba, nhama a ɛka bom yɛ mmerɛw, adesoa-soa tumi mpo, ne nhyehyɛe a ɛyɛ ketewaa a ɛnyɛ den sɛ ɛbɛsakra wɔ bere tenten-bere a wɔde di dwuma mu.
Esiane nsonsonoe a ɛwɔ nneɛma a wɔde yɛ nneɛma mu nti, ɛsono sɛnea ɛyɛ papa. Wɔkyekyɛ plywood mu sɛ "superior grade," "first grade," ne "qualified grade" a egyina sɛnea nneɛma no te ne sɛnea ɛwɔ soro veneer no so. Nnwumakuw binom kyerɛw wɔn baguafo din sɛ Grade A, Double A, anaa Triple A, nanso eyi yɛ adwumayɛ mu adeyɛ ara kwa na ɛne ɔman no gyinapɛn ahorow nhyia; wɔmma kwan bio sɛ wɔbɛkyerɛw nneɛma a ɛte saa wɔ gua so.
Nnua ahorow pii wɔ hɔ a wɔde yɛ plywood, te sɛ poplar, birch, pine, ne paulownia. Wɔ wɔn mu no, wobu poplar ne birch sɛ eye sen biara, efisɛ ɛyɛ den, ɛnyɛ mmerɛw dodo na ɛnyɛ den dodo, ɛwɔ nnadewa-tumi a ɛyɛ den a ɛkura mu, na ɛnyɛ mmerɛw sɛ ɛbɛsɛe. Paulownia deɛ, ɛyɛ hare paa na ɛyɛ mmerɛw, ɛtwe nsuo pii, ɛnni nnadewa-tumi a ɛkura mu yie, na ɛyɛ den sɛ ɛbɛyow. Nnua a wɔde paulownia ayɛ no taa paapae na ɛkyinkyin bere a nsu no yɛ hyew bere a wɔde redi dwuma no. Pine, esiane sɛ ɛyɛ den nti, ɛyɛ den sɛ wobɛmia, enni splicing nhyehyɛe a enye, nail-kura tumi a enye, na ɛwɔ deformation coefficient a ɛkorɔn.