With over nine years of experience in interior design, I've developed the skills and knowledge necessary to successfully complete projects both large and small. I am writing to apply for the Interior Designer position at your company.I am excited to be applying for the position of interior designer. Please accept this letter and the attached resume as my interest in this position. Entry Level Interior Designer Cover Letter Example. A cover letter is a sample of your writing, so a well-written cover letter highlight your writing abilities. Learn how to write an interior designer cover letter. Get expert tips and downloadable cover letter examples for all levels of experience. The cover letter should explain why you are interested in the specific position for which you are applying. The cover letter should explain why you are interested in the specific position for which you are applying.